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Porous Electroactive and Biodegradable Polyurethane Membrane through Self-Doping Organogel.

Authors
  • Fang, Wei1
  • Sun, Fuhua2
  • Tang, Jiajing1
  • Zhao, Qing1
  • Chen, Jie1
  • Lei, Xiaoyu1
  • Zhang, Jinzheng1
  • Zhang, Yinglong1
  • Zuo, Yi1
  • Li, Jidong1
  • Li, Yubao1
  • 1 Research Center for Nano Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu, 610064, P. R. China. , (China)
  • 2 Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, P. R. China. , (China)
Type
Published Article
Journal
Macromolecular rapid communications
Publication Date
Jun 01, 2021
Volume
42
Issue
12
Identifiers
DOI: 10.1002/marc.202100125
PMID: 33904219
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

In order to improve the processability of conductive polyurethane (CPU) containing aniline oligomers, a new CPU containing aniline trimer (AT) and l-lysine (PUAT) are designed and synthesized. Further, the 3D porous PUAT membranes have been prepared by a simple gel cooperated with freeze-drying method. Chemical testings and conductive properties testify a self- doping model of PUAT based on the rich electronic l-lysine and electroaffinity AT moities. The self-doping behavior further endows the PUAT copolymers specific characteristics such as high electrical conductivity and the formation of the polaron lattice like-structure in good solvent dimethyl sulfoxide. The combination of organogel and freeze-drying could prevent the collapse of pore structure when the copolymers are molded as membranes. The synergistic effect of l-lysine and AT components has a strong influence on the dissolution, degradation, thermal stability, and mechanical properties of PUAT. The excellent properties of PUAT would broad the application of conductive polymers in biomedicine field. © 2021 Wiley-VCH GmbH.

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